Parallax Inc 28140 RFID Reader, 4.5 → 5.5V

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Subtotal (1 unit)*

£38.08

(exc. VAT)

£45.70

(inc. VAT)

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Temporarily out of stock
  • 9 unit(s) shipping from 29 October 2025
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1 - 1£38.08
2 - 4£37.70
5 +£36.17

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RS Stock No.:
666-6625
Mfr. Part No.:
28140
Brand:
Parallax Inc
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Brand

Parallax Inc

Component Type

Reader

Supported Bus Interfaces

UART

Supply Voltage

4.5 → 5.5V

Length

82.5mm

Maximum Operating Temperature

+85 °C

Minimum Operating Temperature

-40 °C

Width

62.2mm

COO (Country of Origin):
CN

RFID EM4100 card reader module


The Parallax RFID Reader Module is a low-cost solution to read passive RFID transponder tags. The RFID Reader Module can be used in a wide variety of hobbyist and commercial applications, including access control, automatic identification, navigation, inventory tracking and payment systems. It is available in two versions that differ only in the computer communication interface: serial UART or USB.

Reads 125kHz Tags with EM4100 protocol
Bi-colour LED for visual indication of activity
Power supply: +5Vdc
Communication: 2400bps serial UART (RS 666-6625) or USB (RS 781-3061)
Dimensions: 62.2 x 82.5mm
Operating temperature range: 0 to +70°C

Note

RFID Tags are available separately: RS Part Nos. 843-0806 , 843-0800 , 843-0793 , 843-0803
Frequency: 125 kHz


A range of low-cost RFID Reader modules and RFID Tags.

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